diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/1397-drm-amd-powerplay-add-function-to-get-power-limit-fo.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/1397-drm-amd-powerplay-add-function-to-get-power-limit-fo.patch | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1397-drm-amd-powerplay-add-function-to-get-power-limit-fo.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1397-drm-amd-powerplay-add-function-to-get-power-limit-fo.patch new file mode 100644 index 00000000..fd89a8b8 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1397-drm-amd-powerplay-add-function-to-get-power-limit-fo.patch @@ -0,0 +1,107 @@ +From 5bf091c5028d5b254ef1d80b8252b02e3f8dc49f Mon Sep 17 00:00:00 2001 +From: Likun Gao <Likun.Gao@amd.com> +Date: Tue, 25 Dec 2018 14:44:25 +0800 +Subject: [PATCH 1397/2940] drm/amd/powerplay: add function to get power limit + for smu11 (v2) + +Add smu_v11_0_get_power_limit function to get power limit vaule. + +v2: update "set" to "get", it only implements "get" behavior. (Alex) + +Signed-off-by: Likun Gao <Likun.Gao@amd.com> +Reviewed-by: Huang Rui <ray.huang@amd.com> +Acked-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 4 ++++ + .../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 7 ++++++- + drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 20 +++++++++++++++++++ + 3 files changed, 30 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +index f5ffc9bd31a6..b225cf876a91 100644 +--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c ++++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +@@ -397,6 +397,10 @@ static int smu_smc_table_hw_init(struct smu_context *smu) + if (ret) + return ret; + ++ ret = smu_get_power_limit(smu); ++ if (ret) ++ return ret; ++ + /* + * Set PMSTATUSLOG table bo address with SetToolsDramAddr MSG for tools. + */ +diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h +index 94013c5ca2e3..db3d0f57c5ca 100644 +--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h ++++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h +@@ -201,6 +201,9 @@ struct smu_context + + uint32_t pstate_sclk; + uint32_t pstate_mclk; ++ ++ uint32_t power_limit; ++ uint32_t default_power_limit; + }; + + struct pptable_funcs { +@@ -247,7 +250,7 @@ struct smu_funcs + int (*enable_all_mask)(struct smu_context *smu); + int (*disable_all_mask)(struct smu_context *smu); + int (*notify_display_change)(struct smu_context *smu); +- ++ int (*get_power_limit)(struct smu_context *smu); + }; + + #define smu_init_microcode(smu) \ +@@ -322,6 +325,8 @@ struct smu_funcs + ((smu)->ppt_funcs->set_default_dpm_table ? (smu)->ppt_funcs->set_default_dpm_table((smu)) : 0) + #define smu_populate_umd_state_clk(smu) \ + ((smu)->ppt_funcs->populate_umd_state_clk ? (smu)->ppt_funcs->populate_umd_state_clk((smu)) : 0) ++#define smu_get_power_limit(smu) \ ++ ((smu)->funcs->get_power_limit? (smu)->funcs->get_power_limit((smu)) : 0) + + #define smu_msg_get_index(smu, msg) \ + ((smu)->ppt_funcs? ((smu)->ppt_funcs->get_smu_msg_index? (smu)->ppt_funcs->get_smu_msg_index((smu), (msg)) : -EINVAL) : -EINVAL) +diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c +index 66af3e61d33a..491986713774 100644 +--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c ++++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c +@@ -738,6 +738,25 @@ static int smu_v11_0_notify_display_change(struct smu_context *smu) + return ret; + } + ++static int smu_v11_0_get_power_limit(struct smu_context *smu) ++{ ++ int ret; ++ uint32_t power_limit_value; ++ ++ ret = smu_send_smc_msg_with_param(smu, ++ SMU_MSG_GetPptLimit, ++ POWER_SOURCE_AC << 16); ++ if (ret) { ++ pr_err("[GetPptLimit] get default PPT limit failed!"); ++ return ret; ++ } ++ ++ smu_read_smc_arg(smu, &power_limit_value); ++ smu->power_limit = smu->default_power_limit = power_limit_value; ++ ++ return 0; ++} ++ + static const struct smu_funcs smu_v11_0_funcs = { + .init_microcode = smu_v11_0_init_microcode, + .load_microcode = smu_v11_0_load_microcode, +@@ -766,6 +785,7 @@ static const struct smu_funcs smu_v11_0_funcs = { + .enable_all_mask = smu_v11_0_enable_all_mask, + .disable_all_mask = smu_v11_0_disable_all_mask, + .notify_display_change = smu_v11_0_notify_display_change, ++ .get_power_limit = smu_v11_0_get_power_limit, + }; + + void smu_v11_0_set_smu_funcs(struct smu_context *smu) +-- +2.17.1 + |